I really do wish that Plinky would re-organize their interface in a kind of whack-a-mole motif. They post questions to answers you blog about afterwards. It would be more convenient to be able to see a list of Plinky prompts you haven’t answered yet so you don’t accidentally answer a prompt twice or more. This is a general motif I wish more sites would adopt, especially the more social sites. Twitter would be nicer if you could mark stuff you’ve seen so you can see only the new things, same way with Facebook. Tumblr? It would be nice to have tracking tools for what you have seen, what you have saved, and what you have reblogged.
This sort of thing was answered well enough by Twitteriffic, back when I used Twitter a lot and I quite enjoyed their new-tweet-marker. I can only hope that other services help bring these features to the forefront for users to take advantage of. Only time will tell I suppose, if an idea like this will take off, or not.